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Differentiate between Primary and secondary storage?
Primary and secondary storage - Primary storage device stores the data temporarily. Primary storage is commonly used through the processing unit to temporary store the data, intermediate results, and the final results before storing to the secondary storage since the secondary storage devices are not directly accessible through the CPU. But, if we need to store data permanently then the secondary storage devices are needed. Secondary storage devices are slower than the primary storage devices.
Define single valued and multivalued attributes. Single valued attributes: attributes with a single value for a particular entity are known as single valued attributes. M
Which model is record based logical model? Network Modelis basically known as record based logical model.
A table joined with itself is called ? A table joined with itself is known as self join table. Normal 0 false false false EN-IN X-NONE X-NONE
what is entity in database system?
What is average response time? The average response time is that the average time for a transaction to be done after it has been submitted.
Consider employee (e_no, e_name, e_salary, d_code), dept (d_code, d_name) and dependent (depndt_name, e_no, relation). Show the names of employees in purchase and accounts departm
Explain the steps for reduction of E-R model into relational model. Ans:(a) Entity set in E-R model will be considered as table name in relational Model. (b) Attributes of e
Demonstrate the Design of associations During object design phase we must design a strategy to implement associations. Association may be unidirectional or bi-directional. Wha
There are a number of possible solutions to the open ended brief. One of the simple ones is shown here without the PKs and FKs. It is important to think of how a number of tasks
A practice called Perfect Pets provides private health care for domestic pets throughout America. This service is provided through various clinics located in the main cities of Ame
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